I was thinking about Panda today, and about the Google Supplemental Index. It used to be really popular to check which of your results were in supplemental due to the little green tag that appeared next to a result.
I hear that Google still has this index, it's just not made clear to us which url is or isn't in supplemental.
I wonder if Panda's rank drops across sites were it simply putting them into the supplemental index. When someone regains rank, it's because their site comes out of supplemental.
I can't find a solid way of determining if a url is in the supplemental index... anyone have a way?